import time
from datetime import datetime, timedelta
from flask import current_app, jsonify
from flask import g
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from flask import url_for

from info import constants
from info.models import User
from info.utils.common import user_login_data
from info.utils.response_code import RET
from . import admin_blue


# 实现后台管理员用户列表页面
@admin_blue.route('/user_list')
def user_list():
    """获取用户列表"""

    # 获取参数
    page = request.args.get('p', 1)
    try:
        page = int(page)
    except Exception as e:
        current_app.logger.error(e)
        page = 1

    # 设置变量默认值
    user = []
    current_page = 1
    total_page = 1

    # 查询数据
    try:
        paginate = User.query.filter(User.is_admin == False).order_by(User.last_login.desc()).paginate(page, constants.ADMIN_USER_PAGE_MAX_COUNT, False)
        users = paginate.items
        current_page = paginate.page
        total_page = paginate.pages
    except Exception as e:
        current_app.logger.error(e)

    # 将模型列表转成字典列表
    users_list = []
    for user in users:
        users_list.append(user.to_admin_dict())

    context = {
        'total_page': total_page,
        'current_page': current_page,
        'users': users_list
    }
    return render_template('admin/user_list.html', data=context)


# 实现后台管理员用户统计页面
@admin_blue.route('/user_count')
def user_count():

    # 总人数
    total_count = 0
    try:
        total_count = User.query.filter(User.is_admin==False).count()
    except Exception as e:
        current_app.logger.error(e)

    # 月新增数
    mon_count = 0
    t = time.localtime()
    begin_mon_date = datetime.strptime(('%d-%02d-01' % (t.tm_year, t.tm_mon)), "%Y-%m-%d")
    try:
        mon_count = User.query.filter(User.is_admin==False, User.create_time > begin_mon_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 日新增数
    day_count = 0
    begin_day_date = datetime.strptime(('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday)), "%Y-%m-%d")
    try:
        day_count = User.query.filter(User.is_admin==False, User.create_time > begin_day_date).count()
    except Exception as e:
        current_app.logger.error(e)

    # 拆线图数据

    active_time = []
    active_count = []

    # 取到今天的时间字符串
    today_date_str = ('%d-%02d-%02d' % (t.tm_year, t.tm_mon, t.tm_mday))
    # 转成时间对象
    today_date = datetime.strptime(today_date_str, "%Y-%m-%d")

    for i in range(0, 31):
        # 取到某一天的0点0分
        begin_date = today_date - timedelta(days=i)
        # 取到下一天的0点0分
        end_date = today_date - timedelta(days=(i - 1))
        count = User.query.filter(User.is_admin == False, User.last_login >= begin_date, User.last_login < end_date).count()
        active_count.append(count)
        active_time.append(begin_date.strftime('%Y-%m-%d'))

    # User.query.filter(User.is_admin == False, User.last_login >= 今天0点0分, User.last_login < 今天24点).count()

    # 反转，让最近的一天显示在最后
    active_time.reverse()
    active_count.reverse()

    data = {
        "total_count": total_count,
        "mon_count": mon_count,
        "day_count": day_count,
        "active_time": active_time,
        "active_count": active_count
    }

    return render_template('admin/user_count.html', data=data)


# 管理员后台主页实现
@admin_blue.route('/index')
@user_login_data
def index():
    user = g.user

    data = {
        'user': user.to_dict()
    }
    return render_template('admin/index.html', data=data)


# 管理员登录页面的实现
@admin_blue.route('/login', methods=['GET', 'POST'])
def admin_login():
    if request.method == 'GET':
        user_id = session.get('user_id', None)
        is_admin = session.get('is_admin', False)
        if user_id and is_admin:
            return redirect(url_for('admin.index'))

        return render_template('admin/login.html')

    # 登录管理员账户
    username = request.form.get('username')
    password = request.form.get('password')

    if not all([username, password]):
        return render_template('admin/login.html', errmsg='参数错误')

    try:
        user = User.query.filter(User.mobile == username, User.is_admin==True).first()
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.DBERR, errmsg='数据库错误')

    if not user or not user.check_passowrd(password):
        return render_template('admin/login.html', errmsg='用户名或者密码错误')

    session['user_id'] = user.id
    session['nick_name'] = user.nick_name
    session['mobile'] = user.mobile
    session['is_admin'] = user.is_admin

    return redirect(url_for('admin.index'))






















